# What does **PI** stand for?

## What does **PI** mean? This page is about the various possible meanings of the acronym, abbreviation, shorthand or slang term: **PI**.

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We've found a total of **145** definitions for **PI**:

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PI | Post Intelligencer | ||||

PI | Principal Investigator | ||||

PI | Personal Information | ||||

PI | Principal Investigator | ||||

PI | Principal Investigator | ||||

PI | Performance Index | ||||

PI | Protease Inhibitor | ||||

PI | Personal Injury | ||||

PI | Propidium Iodide | ||||

PI | Program Improvement | ||||

PI | Private Investigator | ||||

PI | Public Information | ||||

PI | Pages In | ||||

PI | Performance Improvement | ||||

PI | Primary Investigator | ||||

PI | Performance Indicator | ||||

PI | Performance Indicator | ||||

PI | Polyimide | ||||

PI | Processing Instruction | ||||

PI | Proportional Integral | ||||

PI | Programming Interface | ||||

PI | Process Information | ||||

PI | Public Instruction | ||||

PI | Public Involvement | ||||

PI | Platform Independent |

#### What does **PI** mean?

- pi(noun)
- the ratio of the circumference to the diameter of a circle; approximately equal to 3.14159265358979323846...

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"PI." *Abbreviations.com.* STANDS4 LLC, 2015. Web. 28 Feb. 2015. <http://www.abbreviations.com/PI>.